Aerial toy drive



Feb. 24, 1931. J. HOLTZMAN AERIAL TOY DRIVE Filed Dec. 18, 1924 INVENTOR; %fin Patented Feb. 24 1931 UNITED STATES.

PATENT OFFICE JOHN HOLTZMAN, OF YORK, N. Y.

AERIAL TOY DRIVE application filed December 18, 1924. Serial No. 756,718.

This invention relates to toys, particularly to types illustrative of aerial navigation and which are actuated by a self contained motor.

One of the features of the invention is in athe provision of means for disconnecting the propeller shaft from the motor-drive and coincidentally set a trigger to engage the motor spring when stressed.

Another aim is to provide means for stressing the motor spring during the disengagement of the propeller shaft,the spring being released uponre-engagement of the propeller shaft with motor.

A further object is to utilize the propeller as a governor or regulator for the motor, preventing it from attaining excessive speed.

These and other purposes which include, a :novel mechanical movement which may be adapted for other devices, an attractive toy calculated to amuse, interest and instruct novices in mechanics and aeronautics, and a miniature flying machine, are accomplished qbylthe novel construction, combination and arrangement of parts herein described, hereafter claimed, and illustrated in the accompanying drawing, constituting an important part ofthis disclosure, and in which Figure 1 is a side elevational view of an embodiment ofthe' device, shown with-the 35 motor at rest, as at the end of its run.

Figure 2 is a transverse sectional view taken on approximatelyline2 2 of Fig. 1.

Figure 3 is a similar sectional view taken substantially online3-3 of Fig. 4.

Figure 4 is a partial side elevationalview, similar to Fig. 1,'but showing the propeller shaft disengaged from the motor and the motor spring tensioned preliminary to operation. 1 1 i A 4 Figure 5 is a perspective view of the device, looking from above, the parts being ready for immediate actuation.

As shown in the drawing, the fuselage, 4,: -main frame or bodyof the device consists of a central longitudinal bar. or rib 10, having 7 at itsrear a pair of spaced clips 11 and 12, by which is attached a support 13 raised at the rear and carrying a single fiat plane 14 repre- 7 senting anangular profile, oneof t P in of which are directed rearwardly, and an opposed pair extended laterally outward uniformly beyond the side of the bar, as best seen in Fig. 5.

At the front of the bar is a similar clip 15, forming part of a downwardly extending bracket 1b, having rearwardly extending plate portions 17 arranged in spaced parallel relation and provided with converging arms 18 fixed to the under side of the bar 10.

Other, Wider clips 19, are attached to the bar in the rear of the bracket 16, and support a wing structure 20, extending equally from the sides of the bar.

Propeller blades 21 are fixed in a hub 22, secured on a spindle 23 rotatable in a bearing formed in the plate 16, at a point near the hub and near its outer end in a bearing 24 formed in the end of a curved lever 25, the

other end of which is pivoted to a bracket 26 fixed on the bar 10.

' The inner extremity of the spindle 23 is seated in either of two sockets 537 or 28,

formed in a spring strip 20, secured at its lower end to projections on the rear of the side plates 17, and it is to be noted that this spring strip furnishes an effective thrust bearing of a yieldable nature, for the propeller.

Formed on the spindle 23 is a coarse pitched norm or helix 30 to be driven by a gear 31, fixed on a transverse spindle 32, mounted in the plates 17, when the propeller spindle is horizontal, at which time its inner end will be disposed in the lower socket 28.

Also fixed ontho spindle 3:? is :1 pinion 33 and in mesh with it is a spur gear I)? fixed on. a drum or spool. 35, the spindle of which is journalled in the plates 17.

A bracket 37 at the rear of the bar 10 is provided with an eye in which is engaged on end of a coiled tension spring 38, the other forward end of the spring having a loop 3%) engaging a cord or like flexible element 420. this cord being coiled several times around the drum toprovide eflicient friction to drive the same, the cord then passing diagonally upward to a sheave 41, mounted on a bracket 42, fixed to the bar 10, below the clip 19, thence over another sheave 43 on a its" broadest aspect."

a spindle l7 rigidly 1 th lever handle 49 into propeller spindle 23, causing its front end to engage in either of thesocketsfii'or 28 the latter insuring engagement of the vorin 30 with the Wheel 31, ivhile it the spindle is ed to engage'in thesocket '27, the worin wnlbe raised-out-o'i enga ement atan angle as shown in gi ig. 4-.

A has pivoted at its-end a hook "detect en gageahle, when in one position, with the cop 59 of the spring and by which the spring may :be held in a stressedconditionw he opposite endvoflth'e d-etent eilzis piv- I Y ot'allyengaged by a l1nk 53, also pivoted at its opposite end tothe disc-l8, being moved by or out of vengaging position. I

In operation, the lever 49 is drawn rear- Wardly, disconnecting the propeller spindle from the motor drive .gear '31 and at the same time extending: the hook detenti 52 into position to engage the springalinkf 39. f

- flhe spring is stressed ordraWirout-either by hand or by pulling 0111theikniobfl lfihuntil the loop 39, isiengagedwwith thedetent, the 7 motor gear tram rotating in a reverse-direction during thisoperation; V 1

Whenthis has been accomplished, thede vice is ready to fly and is set inoperation liberating the spring to perfornrits function of pulling on the cord, and simultaneously coupling the propeller spindle Worm wi h the drawing gear. 1

The action of the propeller bladesdue to thejfriction ofthe air, 'is'such as to retard an ertreine rapid niov-einont' of the spring driven motor, controlling the saine to a dea flight'of consider-able length.

Itwill be understood that the neoljia-n'ical devicesdisclosed are readilyfla'dapted for use in connection Withother structures of more important character than thatlof -a'*toy and therefore are not'to be thusdiinited.

Although]: have described m improve- I inents -with[con'side'rable detail, njd'ivithre ofdny inspect to certain," particular tor Another bracket 51, liked toih'e' r 10,

iinsi Q -"f A a,

4, 1A mechanical toy co p gh i by moving thelever 49 forwardly, this action sirablc rate of speedy-andtherefore assuring i on gage in either. so'cl'ret;

' spring mea-ris forf-retai pe id e v-w ihst g am Havingthns described my invention, What I claim as new and desire to secure by Let ters Patent, is: v

1. A mechanical toy comprising a bar, a

bracket fixed to the bar, a spring actuated motor in the bracket, a spindle having a Worm driven :by one otthe'motor gears,

' means to'engage or disengage theWon'n from the gear, and spring carried sockets to engage the end of the spindle in either of its adjusted positions. r

v 2. A mechanicaltoy comprising a bar, a bracket on the bar, a spring actuated motor int-hebracket, a spindle having a Worm driven by one of the motor gears, means to a ge or di sengage the Worm from the gear, amhaspring strip havin-g'a pair of spaced sockets receptive bf thespindle en'dtoniairr lain the spindle in adjustment. I a

3. A mechanical toy' comprising afbar, a bracket fixed-to 'thebar, a spring actuated motor in' 'the'ibracket, {saidinotor'hav-ing' "a drum, acable Wound on the "drum, aztension ached -to ilhGODUOSlbG end of said cable, 'ineans on .said -;bar to" engage said spring when extended, aspindle" tilting'ly inoii'i'ited' in t e bracket to engage I or 1 disengage the Worm froi'nfits drivinggear, said means when engaging th -W'Orhi coincidentallyreleasing the spring, and'meansto retain saidspindl either o'f its' 'adjusted :bracketextending below the Ebar at oneend thereof, a jle'v'er pivoted to said bar adjacent 'the bracket, ais'pindl'e oiiinalledmea'r its ends respectively in I said bracket and said lejver,

a spr'ngstrip having spaced sockets receptive ofthefnner'extreinity; of said spindle,- means for shitt ng said -1@; er to -caus e tl1e sp ndle to engage in eithersocket,;a-'vvorni'on said spindle, a gearin saidbracket "adapted to drive theiworingand a' springmotor'in the bracketflto energize said gear.

A inejclianical toy. comprising a? bar," a bracket extending-below" the. bar at "one'flend thereoflspring' inoto associated there- I d to said bar ja cent the bracket, a spindle 'journalled near-" it'sends respectivelyinsaid bracket and-said lever, a spring strip having spaced sockets receptive of the inner extremity offls aid spiifdle',means for shiftingsaid lever to-"c'ause the 'spi-ndle to actuate the motor, '1nea'n "fer ten oning the ng thespri ng ivhen oned, "and wetness-release *said spring inc; anneal-sea spindle mounted an said franie a tension sfprinfg to and in mesh with each other, a drumadjacent said gear, a cable engaging said drum, a spring engaging said cable to operate the spindle, a system of levers in the movement, and a hooked detent actuated by the levers and engaging one end of the spring and means actuated by thelevers to engage and disengage the gear and spindle from mesh with each other and simultaneously release the spring from the hooked detent to operate the movement.

'1". In a niechai'iical. movement, the con ibination of a frame, a threaded spindle revolvably mounted in one end ofthe frame, a propeller fan fastened to said spindle, a gear train to actuate said spindle and propeller, a spring motor to drive said train, a hook member mounted in said frame for engaging one end of the spring when said spring isin its tensioned state, and manually operated means to disengage said propeller from oper- 'ative engagement with the motor when said means are actuated in one direction and connect said propeller with said motor and simultaneously release said spring from the hook to operate the motor when said means is actuated in an opposite direction.

8. In a mechanical movement, the combination of a frame, a fan propeller revolvably mounted in the frame, a spring motor mount ed in said frame to actuate the propeller, said motor including a gear train, a drum, a cable wound upon said drum, a spring arranged to pull said cable at one end thereof, and means to disengage said propeller from the motor to permit resetting the gearing 111 its initial position by pulling tl e cable at the other end.

9. In a mechanical movement, the combination of a frame, a revolvably mounted member in said frame, a spring motor for actuatingsaid member, said motor con'iprismg a gear train including a drum, a cable wound on said drum, a coiled spring with one end mounted in said frame and with the other arranged to pull the cable when said spring is tensioned to operate the gear train, and means to engage and disengage said spring to control actuation of the device.

10. In a. mechanical movement, the comhi nation of a frame, a gear train uicmuted in said frame, a spring to operate said train, a cable associated with said spring for setting the same in its operative position, means for engaging the spring when stressed, and means to release the spring to operate the movement.

11. In a mechanical toy aeroplane, the cornbination of aframe. a worm revolvably mounted in said frame, a fan propeller fastened to said worm, a gear meshing with the worm for actuating said propeller, a spring motor in the toy for driving said gear, and manually actuated means for disengaging said worm from the gear while said s irinii motor is in operation.

12. In a niei'cl'ianical movement, the combination of a frame, a gear train mounted in the frame, a spring in the frame to drive the train, a drum fastened to one of said gears, a cable wound upon said drum, said cable having two projectin ends, one end connected to the spring For actuating the gear train and the other end arranged to be pulled a to set the spring to its initial operative position, and means to releasethe spring to start the movement. a

13. In a mechanical movement comprising a 'l'ra1ne,a spring motor mounted in said frame, a revolvably threaded spindle mount ed in the frame actuated by St11(l1ll()li0l',fl coiled spring to operate said motor, a drum associated with said motor, a cable wound upon said drum, a hook mounted in the 14. In a flying toy, the combination of a body member, wings on said member, a frame arranged forwardly of the wings, a worm shaft mounted in said frame with the axis thereof arranged in the direction of flight, a

propeller fastened to said shaft, a gear meshing with said worm for driving said propeller, said gear arranged to be rotated in a vertical plane passing through the axis of said shaft, the axis of said gear shaft disposed horizontally, transverse to the worm i,

shaft and approximately at the middle portion between its mountings, and a spring motor to drive said gear.

15. In a mechanical movement, the combination of a frame, a threaded spindle mounted in said frame, a gear train to actuate said spindle, a drum fastened to one of said gears, a cable wound upon said drum, a spring in the movement arranged to pull the cable to actuate the gear train, alever actu-"i ated hook mounted in the frame to engage the spring when stressed, said lever arra aged to disengage the spindle out of mesh with the gear train to permit said train to freely retate when the cable is pulled at one of its ends, said lever being adapted to simultaneously engage said spindle with said gear train and release the spring from the hook to operate the device.

16. In an aeroplane toy, the combination of a body member, a transverse wing fastened to said body member, a bracket detachably connected to the front end of said memher, said bracket comprising a pair of side walls and a front wall, a shaft mounted in said-front: wall, means extending from I said bracket to support the. other end of said shaft, a propeller fastened,to said sh ft, a secondshaft.-meunted i-n theside walls of said 5 bracket and being paralleLto-the edges efthe wing, a drumfastenedtgsaidsecond shaft and. meams; interpo sedbetween said drum shaft and e the prqller tol ctuate the same upon rotetiongo'f said drum.

1o 1 7 In1a,ioy-aergplepglh"combination of I -a. frame-havinga pair of side, walls and an .end all, e'member prejectlngfrom said frame having a free end,;a s pi ndlereyolvably supported by said end WalL-and:eaidgnember,

1 a propeller fastened tolseid spindle and means mounted, on s aidspindle intermediate I said W- all and saidmember fo rectuating said propeller.

20 vYork and State off-New. $913k this 17th day of- Deeemb er 1 -92 l-'. 7

I HN HO T JMA' 

